diff --git a/lightningd/chaintopology.h b/lightningd/chaintopology.h
index 48669d8f3..d4871e749 100644
--- a/lightningd/chaintopology.h
+++ b/lightningd/chaintopology.h
@@ -104,10 +104,10 @@ struct chain_topology {
 	/* Bitcoin transactions we're broadcasting */
 	struct list_head outgoing_txs;
 
-	/* Force a particular fee rate regardless of estimatefee (satoshis/kb) */
+	/* Force a particular fee rate regardless of estimatefee (satoshis/kw) */
 	u32 *override_fee_rate;
 
-	/* What fee we use if estimatefee fails (satoshis/kb) */
+	/* What fee we use if estimatefee fails (satoshis/kw) */
 	u32 default_fee_rate;
 
 	/* Transactions/txos we are watching. */
diff --git a/lightningd/options.c b/lightningd/options.c
index 6316436d6..3862ee699 100644
--- a/lightningd/options.c
+++ b/lightningd/options.c
@@ -237,10 +237,10 @@ static void config_register_opts(struct lightningd *ld)
 			 "Percentage of fee to request for their commitment");
 	opt_register_arg("--override-fee-rates", opt_set_fee_rates, NULL,
 			 ld->topology,
-			 "Force a specific rates (immediate/normal/slow) in satoshis per kb regardless of estimated fees");
+			 "Force a specific rates (immediate/normal/slow) in satoshis per kw regardless of estimated fees");
 	opt_register_arg("--default-fee-rate", opt_set_u32, opt_show_u32,
 			 &ld->topology->default_fee_rate,
-			 "Satoshis per kb if can't estimate fees");
+			 "Satoshis per kw if can't estimate fees");
 	opt_register_arg("--cltv-delta", opt_set_u32, opt_show_u32,
 			 &ld->config.cltv_expiry_delta,
 			 "Number of blocks for ctlv_expiry_delta");